The correct way to figure square feet is to multiply length by width, so 20 X 22 = 440 sq ft.
A room measuring 20' x 20' = 400 square feet
280 square feet.
20 ft x 20 ft = 400 square ft
There are 9 square feet in a square yard. A room 20 x 12 has 240 square feet. Divide that by 9 and you get 26.67 square yards.
240 square feet. Multiply the length by the width. The result is the area in square feet.
A room measuring 20' x 20' = 400 square feet
400 square feet.
A simple rectangular room 20 feet by 18 feet has 360 square feet.
400 square feet, at the school I went to.
200 square feet
17*20=340 ■
240 square feet.
340 square feet
280 square feet.
20 ft x 20 ft = 400 square ft
360.
15 x 20 = 300 square feet.